I don't think SC6 Amy has much of Viola's SC5 animations. I could be wrong, but Amy has a lot of new attacks in SC6 while building on SC4.
I'm all for Seog Han-myeong returning, and finally in a playable role, but I'm not sure about this choice of weapon. While it has variants all over the far east going back more than a millennia, the three section staff is really a weapon associated with southern Chinese arts and shaolin-quan. It is definitely trained with infrequently in some modern Korean arts, but I think that is more about it being imported along with everything borrowed from Japan by way of taekwondo in the last century, more than anything else. I'm just not sure it fits appropriately with a Korean fighter of the era--but then that is not always the strictest of barriers when it comes to Soulcalibur. Still, maybe it is just the hold cheats for Soul Edge that planted this idea in my head, but I always imagined Han-myeong as a swordsman?
I'd need a source on that beyond daos and dao variants. Even Mi-na's weapon is really just a dao on a stick. I haven't seen much to indicate otherwise.
But I do think it is heavily implied that the dao is where he is most skilled and renowned (it's pretty difficult to read the article cited, summarizing the cannon info on the character to date, from without coming to that conclusion), and it's certainly the weapon he utilized every time he appeared on screen and when he was last playable (as an expy, mind you, but still) so surely this is where his style would be rooted if he were to be made a playable character, even a distinct one--especially in this game that has tended to lean into the world-building and aesthetics of the early games.
That wouldn't discredit his master status of other weapons like the pole arm.
They are clearly setting Viola up to return at some point, so I would get comfortable with that. I think it's unlikely to happen in a SCVI season, but it's not impossible--and I doubt it will be later than SCVII (albeit, that's probably five years or more out yet). Also, I don't think it's fair to lay all of the blame for the series' momentum stalling at the feet of SCV: that was clearly a long process that began with SCIII:CE and culminated in SCV and Lost Swords. SCV gets much more guff than it deserves, imo: I was at the head of the camp that didn't care for it much at release, but in the final analysis, with the advantage of hindsight, it had noteworthy strengths.
But as I tried to be clear about, that's not the point I'm arguing. Maybe we can speculate that he is a martial arts wunderkind/jack of al trades. I think the evidence is kind of patchy for it, but sure, it's by no means impossible. Still, he has only appeared in cutscenes and as a playable character utilizing a dao: it's pretty distinctly linked to his one and only appearance in the series as a visual matter. I just can't imagine they would bring him intot he main roster as a bearer of a completely different weapon than we've ever seen or heard connected to him before, especially in this game: I just can't see that happening.
I think we're still talking past each other here. Again, it may well be that one can make a good argument for the reading you give to the lore. Nevertheless, I don't think there is any chance Seong Han-myeong would be brought back as anything other than a dao wielder, given that is the weapon he used as a playable character in the only game in which he appeared as such, and it is the only weapon we can be fairly confident, as a cannon matter, that he regularly used. Especially in this game which represents all of the early characters in their most orthodox forms (other than Kilik, I suppose: his possessed aspect is referenced in earlier works, but never shown until this one, as playable matter).
Well, in those terms, we'll be able to run through every possible hypothetical, given the rate of content revelations at present! :D Necrid with a rubber baton, ftw!
